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But the committee will introduce reforms to the way change of addresses are made in future ballots.

This will mean any change must be based on a request in writing and clear consent from the member whose address is being changed.

Changes will also be routinely reported to the administrative committee.

"These are significant measures which will ensure that future changes to branch member postal addresses will be beyond the manipulation of any individual," Mr Clements told AAP.

He said the Left faction's assistant secretary would be granted access to the NSW branch membership system and the party would ask the NSW Electoral Commission for advice on whether it could run future state leader ballots.

Mr Shorten earlier told the ABC he had been assured by the NSW branch about the integrity of the ballot.

"I've got zero tolerance for people who want to break the rules of the party and play any of those sort of games," Mr Shorten said.

"But there has been an investigation ... and we've got to keep involving people, ordinary people, in decision making in politics - it's how we build up the level of trust."

Mr Shorten said he supported improving the leadership ballot process.

Asked whether the independent Australian Electoral Commission should run the ballot, he said: "I'm open to that suggestion, yes."